Radiators

What should be used to secure the radiator to the wall?

Radiators are heavy items and should be securely fastened to the wall.
Specific care should be taken to identify the construction of the wall
and use the appropriate fasteners to secure the radiator bracket. Each
radiator bracket has several positions for screws and can be found in the packing of Myson radiators.

Is it possible to fit decorative covers to my existing radiators?

Decorative covers can be utilised, however they will significantly
reduce the output of a radiator. The amount of heat reduction is
dependent on the actual design of the cabinet.

What is the difference between direct and indirect systems?

A direct system is one where the tap water actually mixes with the water
in the radiators. An indirect system separates the tap water from the
radiator water. Myson radiators must only be fitted to an indirect
system.

When would Low Surface Temperature radiators be used?

LST radiators are advisable for areas where a person may injure
themselves if left in contact with a traditional radiator. Such
applications are generally hospitals, nurseries and homes for the
elderly and infirm but they can also be used in children's rooms or
other areas of the house.

Is it possible to curve or bend radiators to fit under a bay window?

Myson Column radiators can be curved to fit most applications, upon special request. Or alternatively smaller radiators can also be used to make up the total length of the
bay.

What allowances should be made for pipe centres from the edge of the radiator?

This obviously depends on the style and brand of radiator valve, however
a rough guide would be to assume that the pipe center is approximately
50mm from the edge of the radiator connection.

What are the recommended clearances when installing a radiator?

We recommended that clearances of 50mm above and 100mm below be left so heat from the radiator can be effectively distributed.

How do you know when a radiator needs venting?

If your radiators are cold at the top and hot at the bottom, the
radiator needs venting. Simply turn off the heating system and slightly
open the air vent (this will require a radiator key) until water is noted at the air
vent. Take care to protect decorated surfaces with a cloth prior to
opening the air vent. Gently close the vent and switch the system back
on. If the radiators need venting frequently, there may be a fault with
the system and a heating engineer should be called.

If radiators are hot at the top and cold across the bottom what does that mean?

This indicates that the radiator may have an insufficient flow of water
to heat it effectively. Large radiators need a higher water flow than
small radiators. There may be several reasons for this such as
incorrect balancing, incorrect pipe sizes or an under-performing or
under-sized pump. A heating engineer should be called to carry out
further investigations.

What are the Correction Factors in the radiator data charts?

We display radiator outputs in accordance with European Standards, at a
radiator to air temperature differential of 50°C. However the hotter
the radiator is above the room’s air temperature, the more heat it will
emit. A typical UK heating system has an average radiator temperature
of around 75°C and, if a room temperature of 20°C is required, there is a
temperature difference between the radiator and the air of 55°C.
Simply look at the technical data of the required radiator and apply the
correction factor for 55°C to the heat output shown to ascertain the
correct heat output of the radiator. The data chart shows correction
factors for a wide range of radiator to air temperature differentials.

What is the hydraulic pressure drop accross a radiator?

The pressure drop across a single panel radiator is similar to that of
an equal length of 15mm copper tube. For a double panel radiator,
assume the radiator is two lengths of 15mm pipe connected in parallel.
For pressure losses across other radiators in the Myson range, consult
the relevant technical brochure.

Are Myson radiators suitable for one-pipe systems?

MYSON radiators are only suitable for two-pipe systems. The circulation
of heat from the one pipe loop to the radiator is promoted by gravity
circulation. Modern radiators generally have high hydraulic resistance
pipe connections, which would prevent effective water circulation
between the pipe and the radiator.

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